Angle-cock.



C. L. ROBINSON.

ANGLE COCK. APPLICATION FILED AUG-5, m5.

1 196587.. PatentedAug. 29, 1916. I

Q7 JIM wwemtoz CLAUDE L. ROBINSON, 013 DETROIT, FLORIDA, ASSIGNOR OFONE-HALF T0 JOSH L. EDWARDS, OF WATERTOWN, FLORIDA.

ANGLE-COCK.

Specification of Letters Patent.

Patented Aug. as, rare.

Application filed August 5, 1915. Serial No. 43,825.

To all whom it may concern:

Be it known that I, CLAUDE L. RoBINsoN, a citizen of the United States,residing at Detroit, in the county of Dade and State of Florida, haveinvented new and useful Improvements in Angle-Cocks, of which thefollowing is a specification.

The present invention relates to improvements in angle cooks for airbrake systems, one of the objects being to so arrange the plug of thevalve that the same will not become loose or defective from constantfriction or wear and wherein the said plug or valve will automaticallygrind itself and so obviate the necessity of replacing worn plugs andovercoming accidents resulting by the escape of air through imperfectvalves.

With the above andother objects in view, the improvement resides in theconstruction, combination and arrangement of parts set forth in thefollowing specification and falling within the scope of the appendeclaim.

In the drawing: Figure 1 is a side elevation of a valve constructed inaccordance with the present invention, and Fig. 2 is a centrallongitudinal sectional view through the same.

Referring now to the drawings in detail, the numeral 1 designates anangle cock adapted to be arranged to receive and to be firmly connectedwith one end of the hose connection. The casing for the angle cock isthreaded at one end, as at 4, for the reception of the threaded end ofthe line air pipe (not shown), and is also threaded at its outer end, asat 5, for connection with the hose section (not shown).

The central or body portion 6 is centrally tapered for the reception ofthe valve plug 7. This taper it will be noted, is larger at the top ofthe body than at the bottom thereof, and likewise the plug 7 has itslargest portion at its upper end. The larger top portion of the casingis provided with an exterior threaded annular flange 8 upon which isscrewed a cap 9. The cap has its inner face provided with a bore ordepression 10 and the top of the plug 7 is formed with an annular flange1.1. This flange is adapted to receive a spring member 12 which has itsopposite endreceived in the depression 10 of the cap 9, the said springexerting a tension between the cap and plug to force the plug downwardand in tight engagement with the walls of its seat. A gas ket 12 isarranged between the flange of the cap 9 and the top of the casing.

The lower wall of the casing through which the reduced end of the plugprojects 1s provided with a downwardly extending annular portion 13provided with spaced notches 1 1, and the reduced projecting end of theplug is formed with a square or rectangular extension 15 which passesthrough a sleeve or collar 16 provided angularly upon a handle 17 thesaid portion 15 of the plug being pivoted, as at 18, to the said sleeveof the handle. The sleeve is provided upon its end diametricallyopposite that formed with the handle 17, with an upstanding lug 19 thatis adapted to engage in one of the notches 1 1 to lock the plug when thesame is rotated to close or open the port of the caslng.

Having thus described the invention, what I claim is:

An angle cock having its body portion provided with a cone-shaped bore,a coneshaped plug filling the bore, said plug having its upper andwidened end provided with an annular ring, a cap upon the upper face ofthe casing and surrounding the upper end of the valve, a pocket withinthe cap, a spring between the pocket and the mentioned ring to force theplug downward and into contact with its seat, the reduced end of theplug extending below the casing and provided with a rectangular member,an angular handle having a collar portion receiving the said rectangularend of the plug, a pivot between the collar and the said end of theplug, a lug formed upon the collar diametrically opposite the handle,and the lower face of the casing being provided with spaced lugs toreceive the mentioned lug of the collar of the handle when the handle ispermitted to swing by gravity upon its pivot, and the handle and theportion of the casing adjacent thereto being curved downwardly.

In testimony whereof I aflix my signature in presence of two witnesses.

CLAUDE L. ROBINSON.

Witnesses:

D. G. CARVER, E. E. GoLLINs.

topics of this patent may be obtained for five cents each, by addressingthe Commissioner of JPatents, Washington, I). G.

